Pretty bold statement to make. But you can't get any statistics about that - because mining is decentralised. Sure, miners are loud, but my point is that in general it's a futile battle for a government to have, expending resources to get people who aren't ultimately wasting any money, and expending a lot of resources trying to get the people who do it on a smaller scale.
It would also really piss people off, because it's basically stealing their investment into those miners by forcibly shutting it down. Shutting down exchanges, on the other hand, isn't a huge threat to people's investments unless people's coins get stolen from the exchanges.
Oh but I can....
Even if mining is "decentralized" in your opinion, I doubt we have hit a number of blocks mined by individuals (non-pool) to even bother counting.
Those pools have to pay their members for the hashrates unless they scam them an run away with the funds.
Now, following the money trail in the blockchain we can approximate on how many miners and how big they are or ,and even easier than that we can access in some cases the mining pool statistics (those that provide it) and see there how many individuals are mining at home with 1 or 2 s9.
Once you try to get over 4 s9 in the average house you're going to have to ask for permits unless you want to leave the entire street in darkness when you turn on anything in your house the same time the miners are plugged in.